Gleb Kalyuzhny as Lyosha

Ulyana Vaskovich as Vika

Olga Ozollapinya as Lyosha's Mother

Dmitriy Blokhin as Dyadya Valera (Uncle Valera)

Irina Frolova as Mama Viki (Vika's Mother)

Shandor Berkeshi as Papa Viki (Vika's Father)

Vladislav Goryachkin as Brat Viki (Vika's Brother)

Dmitry Barinov as Dron

Daniil Pikula as Vityok

Kseniya Pakhomova as Rusalka (Mermaid)

Elizaveta Makedonskaya as Katya

Aleksey Filimonov as Volkov

Alexandr Kononets as Khuligan (Hooligan)

Aleksey Kurtsyn as Khuligan (Hooligan)

Eldar Kalimulin as Khuligan (Hooligan)

Sergey Gabrielyan as Khuligan (Hooligan)

Anna Rud as Tyotya Sveta (Aunt Sveta)

Maksim Palashchenko as Uchitel istorii (History teacher)

Natalya Pikula as Uchitel matematiki (Mathematic teacher)

Yuriy Kolganov as Okhrannik (Security guard)

Aleksandr Boev as Politseyskiy (Policeman)

Sonya Uritskaya as Prodavshchitsa (Saleswoman) (as Sonya Uritskaya)

Aleksandra Vinogradkina as Stefaniya

Viktor Prusikov as Stepan